[INFO] fetching crate singly_linked_list 0.1.0...
[INFO] testing singly_linked_list-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate singly_linked_list 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate singly_linked_list 0.1.0
[INFO] finished tweaking crates.io crate singly_linked_list 0.1.0
[INFO] tweaked toml for crates.io crate singly_linked_list 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate singly_linked_list 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24b6cedd7511c49d9c5a009b3d27dbeadfe76f8b8829f71f9a8ba4dcdc22e5f7
[INFO] running `Command { std: "docker" "start" "-a" "24b6cedd7511c49d9c5a009b3d27dbeadfe76f8b8829f71f9a8ba4dcdc22e5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24b6cedd7511c49d9c5a009b3d27dbeadfe76f8b8829f71f9a8ba4dcdc22e5f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24b6cedd7511c49d9c5a009b3d27dbeadfe76f8b8829f71f9a8ba4dcdc22e5f7", kill_on_drop: false }`
[INFO] [stdout] 24b6cedd7511c49d9c5a009b3d27dbeadfe76f8b8829f71f9a8ba4dcdc22e5f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd8b54b52bea00ae1fb8de9ff8e9ea80994513bc7eb9b365ea6438ab8c44bf5f
[INFO] running `Command { std: "docker" "start" "-a" "bd8b54b52bea00ae1fb8de9ff8e9ea80994513bc7eb9b365ea6438ab8c44bf5f", kill_on_drop: false }`
[INFO] [stderr]    Compiling singly_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "bd8b54b52bea00ae1fb8de9ff8e9ea80994513bc7eb9b365ea6438ab8c44bf5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8b54b52bea00ae1fb8de9ff8e9ea80994513bc7eb9b365ea6438ab8c44bf5f", kill_on_drop: false }`
[INFO] [stdout] bd8b54b52bea00ae1fb8de9ff8e9ea80994513bc7eb9b365ea6438ab8c44bf5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0243b8bb7282ff65b32a929b82bf79be111704b069298324b1d894476c4d2d86
[INFO] running `Command { std: "docker" "start" "-a" "0243b8bb7282ff65b32a929b82bf79be111704b069298324b1d894476c4d2d86", kill_on_drop: false }`
[INFO] [stderr]    Compiling singly_linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "0243b8bb7282ff65b32a929b82bf79be111704b069298324b1d894476c4d2d86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0243b8bb7282ff65b32a929b82bf79be111704b069298324b1d894476c4d2d86", kill_on_drop: false }`
[INFO] [stdout] 0243b8bb7282ff65b32a929b82bf79be111704b069298324b1d894476c4d2d86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 82c2f10ea43860f14f481164cd1ef8cb8ec03b1e4e10449ffc9cfcafd3e14aa3
[INFO] running `Command { std: "docker" "start" "-a" "82c2f10ea43860f14f481164cd1ef8cb8ec03b1e4e10449ffc9cfcafd3e14aa3", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/singly_linked_list-81906137ebd9e8c2)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::test_empty_list ... ok
[INFO] [stdout] test tests::test_list_with_multiple_values ... ok
[INFO] [stdout] test tests::test_list_with_one_value ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests singly_linked_list
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - List<T>::new (line 24) ... ok
[INFO] [stdout] test src/lib.rs - List<T>::add_item (line 42) ... ok
[INFO] [stdout] test src/lib.rs - List<T>::traverse (line 73) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.38s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "82c2f10ea43860f14f481164cd1ef8cb8ec03b1e4e10449ffc9cfcafd3e14aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82c2f10ea43860f14f481164cd1ef8cb8ec03b1e4e10449ffc9cfcafd3e14aa3", kill_on_drop: false }`
[INFO] [stdout] 82c2f10ea43860f14f481164cd1ef8cb8ec03b1e4e10449ffc9cfcafd3e14aa3